SAK-25643 adjust for commons-codec, ical4j and backport=util-concurrent deployed to shared/lib in support of signup and external-calendaring-service

git-svn-id: https://source.sakaiproject.org/svn/kernel@133899 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-24423 Additional Joinable Site Settings


git-svn-id: https://source.sakaiproject.org/svn/kernel@133916 66ffb92e-73f9-0310-93c1-f5514f145a0a